<template>
    <div class="container">
        <div class="app-container">
            <el-button class="btn-add" size="mini" type="primary" @click="addPermission(0, 1)">添加权限</el-button>
            <el-table default-expand-all :data="list" row-key="id">
                <el-table-column prop="name" label="名称" />
                <el-table-column prop="code" label="标识" />
                <el-table-column prop="description" label="描述" />
                <el-table-column label="操作">
                    <template v-slot="{ row }">
                        <el-button v-if="row.type === 1" size="mini" type="text"
                            @click="addPermission(row.id, 2)" >添加</el-button>
                        <el-button type="text" size="mini" @click="editPermission(row.id)">编辑</el-button>
                        <el-button type="text" size="mini" @click="delPermission(row.id)"> 删除</el-button>
                    </template>

                </el-table-column>
            </el-table>
        </div>
        <!-- 放置一个弹层 用来编辑新增节点 -->
        <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="btnCancel">
            <!-- 表单 -->
            <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
                <el-form-item label="权限名称" prop="name">
                    <el-input v-model="formData.name" style="width:90%" />
                </el-form-item>
                <el-form-item label="权限标识" prop="code">
                    <el-input v-model="formData.code" style="width:90%" />
                </el-form-item>
                <el-form-item label="权限描述">
                    <el-input v-model="formData.description" style="width:90%" />
                </el-form-item>
                <el-form-item label="开启">
                    <el-switch v-model="formData.enVisible" active-value="1" inactive-value="0" />
                </el-form-item>
            </el-form>
            <el-row slot="footer" type="flex" justify="center">
                <el-col :span="6">
                    <el-button size="small" type="primary" @click="btnOK">确定</el-button>
                    <el-button size="small" @click="btnCancel">取消</el-button>
                </el-col>
            </el-row>
        </el-dialog>
    </div>
</template>
<script>
import { getPermissionList, addPermission, updatePermission, delPermission, getPermissionDetail } from '@/api/permission'
import { transListToTreeData } from '@/utils'
export default {
    name: 'Permission',
    data() {
        return {
            list: [],// 权限列表
            formData: {// 弹窗的表单数据
                name: '', // 名称
                code: '', // 标识
                description: '', // 描述
                type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
                pid: '', // 因为做的是树 需要知道添加到哪个节点下了
                enVisible: "0" // 默认关闭
            },
            rules: {// 表单的校验规则
                name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
                code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
            },
            showDialog: false,// 控制弹窗的显隐
        }
    },
    computed: {
        showText() {// 用来控制弹窗的标题
            return this.formData.id ? '编辑' : '新增'
        }
    },
    created() {
        this.getPermissionList()
    },
    methods: {
        async getPermissionList() {// 获取权限列表的方法
            this.list = transListToTreeData(await getPermissionList(), 0) // 将列表数据转化成树形结构
            console.log('树形结构数据：',this.list)
        },
        addPermission(pid, type) {// 添加权限的方法
            this.formData.pid = pid
            this.formData.type = type
            this.showDialog = true
        },
        async editPermission(id) {//点击编辑按钮
            // 根据获取id获取详情
            this.formData = await getPermissionDetail(id)
            this.showDialog = true
        },
        async delPermission(id) {//点击删除按钮
            try {
                await this.$confirm('确定要删除该数据吗')
                await delPermission(id)
                this.getPermissionList()
                this.$message.success('删除成功')
            } catch (error) {
                console.log(error)
            }
        },
        btnOK() {// 点击确定时调用
            this.$refs.perForm.validate().then(() => {
                if (this.formData.id) {
                    return updatePermission(this.formData)
                }
                return addPermission(this.formData)
            }).then(() => {
                //  提示消息
                this.$message.success('新增成功')
                this.getPermissionList()
                this.showDialog = false
            })
        },
        btnCancel() {// 点击取消按钮
            this.formData = {
                name: '', // 名称
                code: '', // 标识
                description: '', // 描述
                type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
                pid: '', // 因为做的是树 需要知道添加到哪个节点下了
                enVisible: "0" // 默认关闭
            }
            this.$refs.perForm.resetFields()
            this.showDialog = false
        },
    }
}
</script>
<style>
.btn-add {
    margin: 10px;
}
</style>